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New and used
2025 GMC Sierra 1500 SLT trucks
for sale
near
Austell, GA
- Down Payment
- $0
- Net trade-in value
- $0
- Months
- 72
- APR
- 7.0%
- Sales tax
- 0.0%
*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.






Used
2025 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Customer Service was amazing and I will return.
Customer Service was amazing and I will return. Very professional staff and kept you informed of the progress of your vehicle.
I have the 1500 double cab with standard bed.
I have the 1500 double cab with standard bed. The reason I have this vehicle is I really like the 6.5 foot bed. The crew cab with same bed is just too long. The things I dislike about this model is that it only comes in the SLE model. For the 2025 that means the external mirrors do NOT have a power fold in and it does not have a seat memory for more that one driver. The power fold in for the mirrors is extremely important to me.

New
2025 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Highly recommended
No pressure in purchasing a vehicle. Has your best interest in long term decisions. Very nice and comfortable environment.

New
2025 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Necolarobinson
My experience was wondering. I had a great salesman Kevin






New
2025 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Love my 2020 Mazda CX5 Grand Touring
Great experience with Hennessy of Southlake. Frank Parker was awesome and represented the dealership well. I flew in from Memphis, was picked up from the airport and everything about the car was as represented online.

New
2025 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Customer service
Always very good service. Take very good care of my vehicle
Vehicle information
Features
Vehicle information
Features

New
2025 GMC Sierra 1500 SLT
Vehicle information
Features

New
2025 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Wonderful service!!!
This is the second time that I’ve taken my car to Hennessy and they did another great job! I’d like to shout out Tye, Chelo, Bob, Devon Lee, and Joseph wonderful teamwork!!! 💯💯🙋🏽♀️

New
2025 GMC Sierra 1500 SLT
Vehicle information
Features

New
2025 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Great service
Tommy Webb at Carl Black always takes great care of me. He’s really helpful in providing good feedback as to the issues with our cars. I’ve had nothing but great service from him and Carl Black. Would definitely recommend to anyone who needs their car serviced.
Vehicle information
Features

New
2025 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Awesome
Really nice staff. Cody was really patient with especially being a first time buyer and really helping me in making my very first vehicle purchase.
Vehicle information
Features
Reviews
Capital Buick Service Department
Capital Buick Service Department has truly outdone themselves with strong regards to a remarkable Customer Experience, superseding mediocre Customer Service - because, yes, there?s a distinct Difference!!! They?ve been servicing my vehicle for the past six and a half years and I?ve Never, nor Will Ever consider patronizing any other dealership or auto body shop. The dedicated assessment, consideration and astute attention Team Leader Doug Aldridge provided, gave me peace of mind in preparation for my extensive ?road-trippin? ? journey ahead. I highly recommend entrusting this establishment with all of your car maintenance, detailing and repair needs. Thank you Doug and Allen for being Professional, Accommodating and Reliable - you both are Greatly Appreciated!!
Vehicle information
Features
Reviews
Service Department supreme!!!!
Very very satisfying. One can truly feel confident with a Service Director as Mr. Quinton steadily proves; your Vehicle - Truck or Car - is in the best of hands at Capital GMC / Buick.
Vehicle information
Features
Reviews
Car Service
I was very pleased with the service department. Everyone was very helpful and professional. I went there a long time ago and decided to go back. I am glad that I did! I will also recommend them to others. Mr. Golden was very nice and helpful!
Vehicle information
Features
Reviews
Excellent Service from Radi Rafailov
Thank you Radi for your help! Radi is always professional and friendly. Whenever I come here and makes sure that everything is done with quality and efficiency. This is greatly appreciated!
Vehicle information
Features
Reviews
I enjoy coming to buick they are really polite, and make
I enjoy coming to buick they are really polite, and make you feel very comfortable. I have been telling people all about them, and I'm even recommended family to go buy a car
Vehicle information
Features
New
2025 GMC Sierra 1500 SLT
Vehicle information
Features
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About the 2025 GMC Sierra 1500 SLT
Pro shown (base trim).
- Seating
- 2
- Door count
- 2
- Drivetrain
- Rear-wheel drive
- Combined MPG
- 19
- Transmission
- 8-Speed A/T
- Engine
- 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel)

How much does the 2025 GMC Sierra 1500 SLT cost?
The 2025 GMC Sierra 1500 SLT price depends on optional features. Prices typically start at $38,300 and go as high as $84,200 for fully loaded models.
What is the MPG of the 2025 GMC Sierra 1500 SLT?
The 2025 GMC Sierra 1500 SLT offers up to 21 MPG in city driving and 24 MPG on the highway for a combined rating of 23 MPG.
These figures are based on EPA mileage ratings and are for comparison purposes only. The actual mileage will vary depending on the selected vehicle options, driving conditions, driving habits, vehicle maintenance, and other factors.
What are some similar vehicles and competitors of the 2025 GMC Sierra 1500 SLT?
The 2025 GMC Sierra 1500 SLT compares to and/or competes against the following vehicles:
Is the 2025 GMC Sierra 1500 SLT reliable?
The 2025 GMC Sierra 1500 has an average reliability rating of 5 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2025 Sierra 1500 owners.
Is the 2025 GMC Sierra 1500 SLT a good truck?
Below are the Cars.com consumer ratings for the 2025 GMC Sierra 1500.
- Comfort 5.0
- Interior 5.0
- Performance 5.0
- Value 5.0
- Exterior 4.0
- Reliability 5.0
100% of drivers recommend this car
- Comfort 5.0
- Interior 5.0
- Performance 5.0
- Value 5.0
- Exterior 4.0
- Reliability 5.0
*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.
GMC Sierra 1500 trims
-
GMC Sierra 1500 2025 Elevation
1 Great Deal out of 63 listings starting at $50,240
-
GMC Sierra 1500 2025 Denali
1 Great Deal out of 50 listings starting at $66,991
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